mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-04 01:39:01 +08:00
82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
#pragma once
|
|
|
|
#include "arch.h"
|
|
#include "net.h"
|
|
|
|
struct mip_driver {
|
|
bool (*init)(uint8_t *mac, void *data); // Initialise driver
|
|
size_t (*tx)(const void *, size_t, void *data); // Transmit frame
|
|
size_t (*rx)(void *buf, size_t len, void *data); // Receive frame (polling)
|
|
bool (*up)(void *data); // Up/down status
|
|
// Set receive callback for interrupt-driven drivers
|
|
void (*setrx)(void (*fn)(void *buf, size_t len, void *rxdata), void *rxdata);
|
|
};
|
|
|
|
// Receive queue - single producer, single consumer queue. Interrupt-based
|
|
// drivers copy received frames to the queue in interrupt context. mip_poll()
|
|
// function runs in event loop context, reads from the queue
|
|
struct queue {
|
|
uint8_t *buf;
|
|
size_t len;
|
|
volatile size_t tail, head;
|
|
};
|
|
|
|
#define MIP_ARP_ENTRIES 5 // Number of ARP cache entries. Maximum 21
|
|
#define MIP_ARP_CS (2 + 12 * MIP_ARP_ENTRIES) // ARP cache size
|
|
|
|
// Network interface
|
|
struct mip_if {
|
|
uint8_t mac[6]; // MAC address. Must be set to a valid MAC
|
|
uint32_t ip, mask, gw; // IP address, mask, default gateway. Can be 0
|
|
struct mg_str rx; // Output (TX) buffer
|
|
struct mg_str tx; // Input (RX) buffer
|
|
bool use_dhcp; // Enable DCHP
|
|
struct mip_driver *driver; // Low level driver
|
|
void *driver_data; // Driver-specific data
|
|
struct mg_mgr *mgr; // Mongoose event manager
|
|
|
|
// Internal state, user can use it but should not change it
|
|
uint64_t now; // Current time
|
|
uint64_t timer_1000ms; // 1000 ms timer: for DHCP and link state
|
|
uint64_t lease_expire; // Lease expiration time
|
|
uint8_t arp_cache[MIP_ARP_CS]; // Each entry is 12 bytes
|
|
uint16_t eport; // Next ephemeral port
|
|
uint16_t dropped; // Number of dropped frames
|
|
uint8_t state; // Current state
|
|
#define MIP_STATE_DOWN 0 // Interface is down
|
|
#define MIP_STATE_UP 1 // Interface is up
|
|
#define MIP_STATE_READY 2 // Interface is up and has IP
|
|
struct queue queue; // Receive queue
|
|
};
|
|
|
|
void mip_init(struct mg_mgr *, struct mip_if *);
|
|
|
|
extern struct mip_driver mip_driver_stm32;
|
|
extern struct mip_driver mip_driver_enc28j60;
|
|
extern struct mip_driver mip_driver_w5500;
|
|
|
|
// Drivers that require SPI, can use this SPI abstraction
|
|
struct mip_spi {
|
|
void *spi; // Opaque SPI bus descriptor
|
|
void (*begin)(void *); // SPI begin: slave select low
|
|
void (*end)(void *); // SPI end: slave select high
|
|
uint8_t (*txn)(void *, uint8_t); // SPI transaction: write 1 byte, read reply
|
|
};
|
|
|
|
#ifdef MIP_QPROFILE
|
|
enum {
|
|
QP_IRQTRIGGERED = 0, // payload is number of interrupts so far
|
|
QP_FRAMEPUSHED, // available space in the frame queue
|
|
QP_FRAMEPOPPED, // available space in the frame queue
|
|
QP_FRAMEDONE, // available space in the frame queue
|
|
QP_FRAMEDROPPED, // number of dropped frames
|
|
QP_QUEUEOVF // profiling queue is full, payload is number of frame drops
|
|
};
|
|
|
|
void qp_mark(unsigned int type, int len);
|
|
void qp_log(void); // timestamp, type, payload
|
|
void qp_init(void);
|
|
#else
|
|
#define qp_mark(a, b)
|
|
#endif
|